To get a tomato crop as early as possible, many use greenhouses. But this method requires tremendous effort and is associated with great risks. After all, it is necessary not only to properly build a greenhouse, to pick up soil, to disinfect it in time, but also to monitor air temperature, humidity, and regularly air the building. In addition, it is necessary to carefully monitor the tomatoes from the moment of the first shoots. It is important to identify tomato diseases in the greenhouse and begin treatment as early as possible. This is one of the main conditions for caring for these vegetables.
In order to increase productivity and prevent the appearance of
diseases and pests of tomatoes, it is important not to forget about the cultivation. Do not plant tomatoes in the same place for several years. Swap them with cucumbers, peppers or other vegetables. After harvesting, you must remove all plants from the greenhouse and replace the topsoil. All wooden elements, film and glass must be sanitized with lime and
copper sulphate. This will help prevent many tomato diseases in the greenhouse.
One common problem is the infection of tomatoes with a viral disease such as mosaic. On the leaves, pale green spots alternate with healthy areas. Another common problem is strick disease. It manifests itself in the form of stripes and spots on the fruits, stems, shoots. On tomatoes, keratinized patches of irregular shape are visible, and the flesh inside such fruits is brown, they are unevenly colored. These
tomato diseases in the greenhouse develop very rapidly in cool and cloudy weather, but they can be prevented if you alternate crop planting places, take seeds only from healthy plants known to you and disinfect them with potassium permanganate before planting. It is also good to cover them with a film to avoid transmission of the virus inside the greenhouse.
At high humidity and a temperature of about 25 ° C, cladosporiosis can develop (it is also known as brown spotting). This fungal disease first affects the lower leaves, then spreads up, goes to the fruits. As a result, the tomatoes shrink and fall away. Also, high humidity and temperature contribute to the appearance of chlorosis - Fusarium wilt. It, as a rule, manifests itself during the fruiting period. You can prevent such tomato diseases in the greenhouse if you monitor the humidity, water the plants only in the first half of the day and remove any damaged shoots or even bushes.
In greenhouses, you can often encounter diseases such as late blight and gray rot. They are the cause of the appearance of brown wet spots on the fruits. Also, infected tomatoes may have a gray mold coating. It is clear that such vegetables are no longer suitable for food.
If you notice that something is wrong with your seedlings or fruits, then it is better to look at the pictures of the disease of tomatoes in the greenhouse. Photos of affected plants and fruits will allow you to more accurately determine the disease and decide on further actions. True, not always beginner farmers can cope with this task on their own. But it will not be difficult for you if you grow tomatoes for many years. Diseases, the treatment of which is not a problem for a specialist, will recede. It will be enough just to inspect the plants to assess the scale of the problem and talk about methods of prevention and control of the disease.